Redefining polyamide property profiles via renewable long-chain aliphatic segments: Towards impact resistance and low water absorption
Research output: Contribution to journal › Article › Scientific › peer-review
A series of renewable, long-chain, fatty acid-derived polyamides (PA) ranging from PA 6,14 to PA 6,18 were synthesized via polycondensation, yielding very high molecular weights and a remarkable property profile distinct from short-chain commercial grades. Most notably, synthesized polyamides exhibited good impact resistance, excellent stiffness-to-toughness balance and very low water absorption yet high oxygen and water vapour permeability; with this property profile being exemplified by PA 6,18. The increased repeating unit length and reduced number of amide linkages able to participate in interchain hydrogen bonding imparted a strong influence on material properties. The data highlights the benefits and technical advantages of utilising long-chain polyamides, while also significantly expanding the repertoire, knowledge and property profile of the long-chain aliphatic polyamide family, and providing a basis for further development of polyamides from renewable sources.
|Number of pages||10|
|Journal||European Polymer Journal|
|Publication status||Published - 1 Dec 2018|
|MoE publication type||A1 Journal article-refereed|
- Impact strength, Molecular weight, Polyamide, Renewable, Water absorption